I recently changed the font size in my MS Office, but the font size in QBL has become really small. How can I increase it?

I'm here to help you increase the QuickBooks font size, saddleinn.

 QuickBooks Online (QBO) depends on the Windows font settings. Let's adjust the settings on your computer to increase its size. Here's how:

For Google Chrome: 

1. Click the menu icon (like a three-dotted line), then select Settings.
2. Under Appearance, click the Font size and Page zoom drop-down arrow and pick a size.
3. Refresh the page, then go back to your QBO account.
   

For Mozilla Firefox:

1. Go to the Hamburger icon, then choose Settings.
2. Click the drop-down arrow beside Size, then update it.
3. Refresh the page, then check the size will of your QBO account.
   

Additionally, I've added an article that'll help you adjust the font size of your printed sales forms. This helps you modify it on the Customs Form Styles window: Customize Invoices, Estimates, and Sales Receipts in QuickBooks Online. 

Please leave a reply below if you need further assistance in increasing or reducing the font and screen size of your QBO. I'll be right here to lend a helping hand. Take care always.